Business hours: 8:00 a.m. to 5:00 p.m. (Central) Monday – Friday

420C

General Information

Factory
Dubuque, Iowa,  USA

Beginning and Ending SN
(First) 80001 (Last) 136868

Year and Serial No. Breaks

Phase 1 (All Green) / 1956
First: 80001 (Date Oct. 27, 1955) Last: 94818 (Date July 13, 1956)

Phase 2 (Green and Yellow) / 1957
First: 100001 (Date July 30, 1956) Last: 119764 (Date July 17, 1957)

Phase 3 (Slant steer) / 1958
First: 125001 (Date Aug. 7, 1957) Last: 136868 (Date July 26, 1958)

More 420C Details
Factory
Dubuque, Iowa,  USA

Beginning and Ending SN
(First) 80001 (Last) 136868

Year and Serial No. Breaks

Phase 1 (All Green) / 1956
First: 80001 (Date Oct. 27, 1955) Last: 94818 (Date July 13, 1956)

Phase 2 (Green and Yellow) / 1957
First: 100001 (Date July 30, 1956) Last: 119764 (Date July 17, 1957)

Phase 3 (Slant steer) / 1958
First: 125001 (Date Aug. 7, 1957) Last: 136868 (Date July 26, 1958)

Total Produced

Phase 1 (All green/1956): 5386 (First SN 80002, Last SN 94727)

Phase 2 (Green and Yellow/1957): 9498 (First SN 100008, Last SN 119761)

Phase 3 (Slant steer/1958): 2998 (First SN 125007, Last SN 136795)

LP  4 All fuel: 88 Gasoline: 17790

Grand total: 17,882

Original Price
$2316.00 (As of July 1, 1958)

Specs

(Engine)

Gasoline
Manufacturer: John Deere
Four stroke cycle, Valve-in-Head

Fuel
Gasoline

Aspiration
Natural

Displacement
113.3 c.i.

Bore and Stroke
4.25″ x 4.00″

Maximum HP at the Drawbar
23.53

Maximum HP at the Belt
28.76

Maximum Torque at the Engine
90 foot-pounds

RPM at Maximum Torque
300

Cylinders
2

Valves
4

Cooling
Liquid

Compression ratio
Approximately 7.0 to 1

Engine Speed
Rated load…..1850, Fast Idle…..2025, Slow Idle…..550

Firing Order
1-2

Air Cleaner
Oil Bath

Starter Volts
6

Spark Plug Gap
.025″

Distributor Point Gap
.022″

Intake Valve Clearance
.015″ (when cold)

Exhaust Valve Clearance
.015″ (when cold)

Oil Capacity
5 qts. (including oil filter)

Coolant Capacity
3-1/2 gals.

All Fuel

Manufacture
John Deere
Four stroke cycle, Valve-in-Head

Fuel
All Fuel

Aspiration
Natural

Displacement
113.3 c.i.

Bore and Stroke
4.25″ x 4.00″

Maximum HP at the Drawbar
23.53

Maximum HP at the Belt
28.76

Maximum Torque
90 foot-pounds

RPM at Maximum Torque
1300

Cylinders:
2

Valves
4

Cooling
Liquid

Compression ratio
Approximately 5.2 to 1

Engine Speed
Rated Load…..1850, Fast Idle…..2025, Slow Idle…..550

Firing Order
1-2

Air Cleaner
Oil Bath

Starter Volts
6

Spark Plug Gap
.025″

Distributor Point Gap
.022″

Intake Valve Clearance
.015″ (when cold)

Exhaust Valve Clearance
.015″ (when cold)

Oil Capacity
5 qts. (including oil filter)

Coolant Capacity
3-1/2 gals.

LP:

Manufacturer
John Deere
Four stroke cycle, Valve-in-Head

Fuel
LP

Aspiration
Natural

Displacement
113.3 c.i.

Bore and Stroke
4.25″ x 4.00″

Maximum HP at the Drawbar
23.53

Maximum HP at the Belt
28.76

Maximum Torque
90 foot-pounds

RPM at Maximum Torque
1300

Cylinders
2

Valves
4

Cooling
Liquid

Compression ratio
Approximately 7.0 to 1

Engine Speed
Rated Load…..1850, Fast Idle…..2025, Slow Idle…..550

Firing Order
1-2

Air Cleaner
Oil Bath

Starter Volts
6

Spark Plug Gap
.025″

Distributor Point Gap
.022″

Intake Valve Clearance
.015″ (when cold)

Exhaust Valve Clearance
.015″ (when cold)

(Transmission)

(A Direction Reverser was an available option for $136.00)

Gears
4 Forward and 1 Reverse

Travel Speeds
First .82 mph Second…..2.21 mph Third…..2.95 mph Fourth…..5.31 mph Reverse….1.64 mph

Gears
5 Forward and 1 Reverse

Travel Speeds
First .89 mph Second…..2.21 mph Third…..2.95 mph Fourth…..3.83 mph Fifth…..5.74 mph Reverse…..1.64mph

Type
Selective Sliding Gear

Oil Capacity
6-1/2 qts. Transmission and Differential
(7/8 qt. each, Final Drives)

Oil type
Without Reverser Unit Use SAE 90
With Reverser Unit Use SAE 80 or 90 Multi-Purpose Lubricant (Transmission and Differential)
SAE 90 (Final Drives)
ATF (Reverser)

Dimensions

4 Roller
Over-All Height…..69” Height to Top of Grille…..51-7/8” Over-All Width…..56” Over-All Length…..102” Center-of-idler-to-center-of-sprocket…..(approx.) 56” Clearance…..12” Shipping Weight…..4150 lbs. Turning Radius…..6 Ft. No. of Shoes per Track…..31 (regular) 32 (with oversize front idler)

5 Roller
Over-All Height…..69” Height to Top of Grille…..51-7/8” Over-All Width…..56” Over-All Length…..102” Center-of-idler-to-center-of-sprocket…..(approx.) 66-3/8” Clearance…..12” Shipping Weight…..4700 lbs. Turning Radius…..6-1/2 Ft. No. of Shoes per Track…..35

Tread Widths
(Center-to-Center)

(Track Shoe)

10” Shoe:…..36”, 38”, 44”, 46”

Oil Capacity
5 qts. (including oil filter)

Coolant Capacity
3-1/2 gallons

Tread Widths
(Center-to-Center)
(Track Shoe)
10” Shoe:…..36”, 38”, 44”, 46”

John Deere 420C

420C Parts

Engine

Fuel System

Cooling System

Engine Clutch

Reverser

Transmission

Differential

Final Drive

Controls/Instruments

Frame and Chasis

Hydraulics

Drawbar and Hitch

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Sheet Metal

Seats

Steering Clutch

Under Carriage

Electrical

Decals

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Specialty Parts

Specialty Tools

Under Development

Misc.

Manuals

Keep ‘Em Crawling • 402-670-3573 • 1013 State Street, Blair, NE 68008  © 2024
Business hours: 8:00 a.m. to 5:00 p.m. (Central) Monday – Friday

Keep ‘Em Crawling • 402-670-3573
1013 State Street, Blair, NE 68008
© 2024

Business hours
8:00 a.m. to 5:00 p.m. (Central)
Monday – Friday

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